M-4

The M-4 is a version of the M-16 machine gun with a 16" heavy barrel which has a special machined groove which is used inconjunction with the bayonet lug, to allow attachment of other devices. The most commonly attached device is a grenade launcher.
This groove is midway between the front sight and the flash-hider on the end of the barrel.

M-4 by Anonymous October 21, 2003

Left 4 Dead 2 

Left 4 Dead 1.5, "Here's how it should of been". A game assumed to kill of Left 4 Dead, seeing how in the eyes of Valve, Left 4 Dead is an old man because it dropped to 30 dollars in retail stores. Left 4 Dead 2 is a "DLC that was too big" says Valve, so instead they decided to release it as a full game and slap a 50 dollar tag on it and pretend Left 4 Dead was never released. It would be great to have a silenced uzi in a zombie apocalypse wouldn't it?

L4D2 player: "Am I play Left 4 Dead or Left 4 Dead 2?" *looks at Left 4 Dead 2 CD case* "WHAAT?!"

Valve: So, I heard you want some DLCs from us? Since when did we promise DLCs for Left 4 Dead? *Person shows previous interviews*.

Valve: LEFT4DEAD2 DESERVES TO BE A SEQUEL, I PROMISE! OR....I'LL TRADE YOU DLC FOR 50 DOLLARS!

Left 4 Dead 2 by A 1337 Ninja June 10, 2009

aisle 4 

Aisle 4: This term is used when trying to refer to something so; extraordinary, superb, or radical; that those words just don't sum it up. Also used to exemplify the high degree of a positive quality that an noun has.

Q:"So, was the trip fun?" A:"Bro, it was Aisle 4."
It was like Aisle 4.

aisle 4 by Jake Sotomayor June 11, 2006

February 4 

If born on this date most of your actions will flop and never gain traction.

Pedro: hey why haven’t you posted lately

Jose: it’s because I was born on February 4
Pedro: makes sense you flop

February 4 by Cloudy.jaid October 16, 2019

Cat 4 

Military intelligence (IQ) Catagory Four. The lowest intelligence catagory allowed to serve in the military.

They were documented to have a much greater number of accidents and injuries, especially in combat.

Watch out for Jones. He's a Cat 4 and Cat 4s will get you killed.

Cat 4 by shortdog77 April 13, 2011

3.4 mile fun run 

A unique term used when a woman has had a powerful orgasm but can't stop her body from continuing the orgasm over a long period of time. It is usually caused by the brain or body not being able to process the information of the orgasm and continuing the sensation until the body can either manually stopped by medicinal drugs or by the body processing the orgasm and stopping the the sensation. The term is derived from the distance from a home to a local hospital.

C: Jack!
J: Yeah Cate?
C: something s wrong!
J: what?
C: I don't know.
C: take me to the ER!!!
J: okay.
J: Siri. Nearest hospital.
S: one is 3.4 miles away.
J: shit! my cars in the shop.
C: jack. Run. Now.
J: it's about to be a 3.4 mile fun run

3.4 mile fun run by Dr. Francisco baker December 31, 2017

November 4

National Abortion day and National Sperm Bank day so go to your nearest clinic and donate or slap that waste into the abortion bucket where the can slither out.

Mark: Alice where are you going you prego?
Alice: Mark, it's November 4th you gotta do what you gotta do.
Mark:

November 4 by Plants_huh November 2, 2019